Hand stamp mount



Oct. 9, 1934. J. COOKE 1,976,254

HAND STAMP MOUNT Filed Nov. 25, 1932 2 Sheets-Sheet l INVENTOR JAMES Coomz.

ATTO RN EY Get 9, 1934. 1 COOKE 1,976,254

HAND STAMP MOUNT Filed Nov. 25, 1932 2 Sheets-Sheet 2 INVENTOR JAMES COOKF...

ATTORNEY Patented Got. 9, 1934 ETD T'I'Ef FFECE Claims.

My invention relates to hand-stamp mounts. It is the object of my invention to provide a hand-stamp mount having a sheet-metal cover to which the handle is affixed, and in which the 5 cushion and mount-block are held removably.

A further object of my invention is to provide a hand-stamp mount which may be labelled. by a direct impression from the stamp which is to be held thereby. A further object is to provide improved means for attaching handles to handstamps. A further object is to provide a handstamp having means for mufliing and reducing the sound caused during use of the stamp when the same is struck against the work. A further object is to provide a metal-covered mount for type-holders or hand-sta-mp-blocks employing movable rubber type. A further object of my invention is to provide hand-stamps having a structure whereby the manufacture of the stamps is facilitated, and the stamp manufacturer is enabled to produce stamps of any desired size from a limited stock of semi-finished parts, and by simple and economical operations.

In the accompanying drawings Fig. l is a front View of a hand-stamp mount embodying myinvention, Fig. 2 is a transverse vertical section thereof, Fig. 3 is a plan view of one of thesemifinished metal strips employed in forming the mount-covers, Fig. 4 is an end view of the same, Fig. 5 is a side view of one of the mount-block strips with its attached cushions, used in forming the mounts, Fig. 6 is an end view of the same, Fig. '7 is an enlarged detail section, showing the attachment of the handle-stem to the mountcover, Fig. 8 is a front View of a mount-cover as provided for use with a holder-block for movable type, Fig. 9 is an end view of the same, Fig. 10 is a plan view of one of the semi-finished coverstrips used in producing the mount-cover shown in Figs. 8 and 9, Fig. 11 is an end view of the same, and Figs. 12, 13 and 14 are diagrammatic sectional views showing successive stages of an operation in completing the formation of the mount-covers from the semi-finished metal strips.

In carrying out my invention, I provide a metal channel or U-shaped member adapted to cover the top and the longitudinal edges of the stampblock, and to partly cover the longitudinal edges of the cushion, in the case of stamps with which a cushioned mount is used. Referring to Figs. 1 and 2, the mount-cover is formed from an integral plate and comprises a rectangular top portion 20 having at one longitudinal edge a downwardly extend ng flange 21 of which an intermediate portion is shaped to form a longitudinal inwardly extending bead 22. At the opposite edge of the top portion 20 is a downwardly extending flange 23 of which a portion 24 is doubled 01' folded in to lie against the inner side of the flange 23, the intermediate part of said portion 24 being shaped to form a longitudinal inwardly extending bead 25 similar to thebead 22. A handle 26 is attached to the mount-cover by means of a metal stem 27 afiixed to and extending Vertically from the center of the top portion 20. Preferably the stem 27 has a flat head 28 which lies in a recess formed in the lower side of the plate-member by swaging upwardly a portion 29 thereof, said portion 29 having a central opening through which is passed a squared part 30 of the stem adjoining the head 28, and the stem being afiixedto the plate by stripping down the corners of the squared part 30 to form upset lugs 31, indicated by dotted lines in Fig. '7, said lugs overlying the upper side of the plate so that the latter is clamped between them and the head 28. The stem 27 is of substantially uniform diameter, its upper end is pyramidally pointed, its lower portion may be slightly serrated as shown, and its surface is preferably coated with an adhesive composition such as is used for coated nails to prevent withdrawal thereof after the same have been driven. The handle 26 is drilled to provide therein a hole in which the stem 27 may be driven without causing splitting of the handle, and the stem is permanently retained in the handle by friction and the adhesive coating, while turning of the stem in the cover-plate is positively prevented by the squared part 30. i :For use in the described mount-cover, I provide a wood mount-block 32 having grooves 33 in the longitudinal edges thereof, and having attached to the lower side thereof the usual cushion 34 of sponge-rubber or the like, to which the stamp 35 is cemented in the ordinary manner. The width of the block 32 and cushion 34 is such as to fit snugly between the side-members 2-1 and 24 of the mount-cover, with the beads 22 and 25 extending into the grooves 33 so thatdownward displacement of the block is prevented, assembly being effected by sliding the block endwiseinto the cover, and the block being retained in place by frictional contact with'the cover. Preferably a thin auxiliary cushion 36 is employed on' the upper side of the block 32, the parts being so proportioned that said cushion 36 is slightly compressed when the block is in place within the cover. The auxiliary cushion 36 increases the fric- ,tional contact between the block and cover, which normally prevents longitudinal displacement of 110 the parts, and said cushion also mutiles and reduces the sound caused during use of the stamp, as the same is struck against the work. Upon the external or exposed surfaces of the mountcover, any suitable finish, such as metal-plating, lacquer or enamel, may be provided, the finish employed preferably being such that the same may be applied to the sheet-metal prior to the formation of the cover from the original flat sheet. Upon the flat outer surface or side-face of the flange 23 of the mount-cover, I provide an adherent coating 37 of lacquer or the like, adapted to receive an impression from the stamp 35, or from a characteristic portion of said stamp, prior to the assembling of the mount within the cover. Said impression from the stamp serves as a label to identify the stamp and also to indicate the front side of the mount, so that the user may select the desired stamp and hold the same in proper position for use, without reference to the face of the stamp itself. The coating 37 is made of suitable color to afford contrast with the impression made thereon by the stamp, and the coating may be omitted in case the finish on the entire surface of the mount-cover is suited to receive the labelling impression from the stamp.

The preferred method for manufacture of the described mount-blocks, consists in initially preparing large integral sheets or slabs of block material by cementing to the sides thereof the materials which are to form the cushions 34 and 35, then sawing the prepared sheets or slabs into strips of the various widths required in forming the mounts, then forming the grooves 33 in the edges of said strips to provide the semi-finished mount-strips shown in Figs. 5 and 6, and finally sawing the grooved strips transversely to form mount-blocks of the required lengths.

The preferred method for manufacture of the mount-covers consists in initially applying the desired finish to the large metal sheets from which the covers are to be made, then cutting said large sheets into strips of suitable width for the various widths of covers required, then forming in said strips adjacent to the edges thereof the longitudinal beads 22 and 25, then folding or doubling the portions 24 in which the beads 25 have been formed, and then applying to the outer sides of the portions 23 the coating 37 as a longitudinal strip extending the full length of the beaded and folded metal strip, thus providing the semi-finished cover-strips shown in Figs. 3 and 4. From said strips, portions are cut of the length required for the various mount-covers, and after cutting to length, the longitudinal edge portions of the pieces are bent to form the flanges 21 and 23. After forming said flanges the portion 29 is swaged upwardly from the center of the top plate 20 and a circular opening is made in said portion 29 to receive the stem 27. The squared part 30 is then forced through said circular opening, and. the corners of the squared part stripped down and upset over the plate to permanently retain the stem thereon. The handle is then driven down onto the stem, on which it is retained by friction and the adhesive coating of the stem, as above mentioned. After the stamp 35 has been cemented to the cushion 34, and prior to assembly of the mount-block within the cover, an impression of the stamp is made upon the coated surface 37, to form a label as above mentioned.

It will be understood that in the manufacture of hand stamps the size of the mounts is customarily limited to a definite series of widths, usually denoted in printers picas, While the length of the mounts is subject to much greater variation, even when the lengths are standardized in uniform pica-multiples. Thus, by providing mountstrips as shown in Figs. 5 and 6, of widths conforming with the required variation in the width of the mounts, and providing cover-strips as shown in Figs. 3 and 4, in a similar series of widths, the stamp manufacturer needs only a limited stock of such semi-finished parts from which to make mounts of any size that may be desired, the operations for completing the mounts from the semi-finished parts being sim ply the cutting off of the mount-strips and coverstrips in the desired lengths, and forming the cover-strips as above described. The formation of the U-shaped mount-covers from the fiat strip-portions is preferably effected by a simple sheet-metal-bending device, such as shown diagrammatically in Figs. 12, 13 and 14, said device comprising a pair of parallel clamp-jaws 39 and 40, the latter carrying a slidable gage-bar 41 which constantly engages the jaw 39 to limit the depth to which the cover-strip may be inserted between the jaws, the jaw 39 being grooved to receive the beads 22 and 25 of the cover-strips, and a bar 42 mounted to move pivotally about an axis coincident with the upper front corner of the jaw 40. Fig. 12 shows the insertion of the cover-strip between the jaws, Fig. 13 shows the clamping of the strip between the jaws, and Fig. 14 shows the completion of the bending operation to form one of the flanges. By the use of a bending device of the character indicated, the same may be employed to form both flanges of mount-covers of all widths and lengths, the width of the covers being gaged by the widths of the strips prior to the bending of the flanges thereon. The swaging and perforating of the portions 29 of the covers, and the fastening of the handle-stems therein by stripping down the corners of the squared parts 39, are easily and quickly effected by simple tools of which the construction and operation will be obvious.

Metal mount-covers, similar to the above described covers for cushioned stamps, may be provided for use with holders for movable rubber type, in which the holder or mount-block 45 has longitudinal channels for receiving the type 46, as shown in Figs. 8 and 9. In covers for stamps of this character, the handle 26 and top portion 20 of the cover may be identical with the first-described structure, but both of the flanges 21' and 23' of the cover may have flat sides, with their lower edge portions 22' and 25 curled inwardly to extend about the lower corners of the block 45, instead of having the beads 22 and 25 for engaging a grooved block. The block 45 is preferably provided at its upper side with an auxiliary cushion 36, for the same purposes as the cushion 36 in the first-described structure, and the covers may be fabricated, as required, from semi-finished cover-strips of the form shown in Figs. 10 and 11. As stamps of this character are changeable by removal and insertion of different type, it is usually unnecessary to provide for labelling the mount-covers.

Now, having described my invention, what I claim and desire to secure by Letters Patent is:

1. In a hand stamp mount, a mount-block, a cushion affixed to the upper side of said block, a sheet-metal cover extending across the top of said cushion and having flange portions embracing the longitudinal edges of said block and cushion and engaging the block to hold the cushion under compression, and a handle afl'ixed to the top portion of said cover.

2. In a hand stamp mount, the combination with a mount-block having a cushion afiixed to the lower side thereof for receiving the stamp, of an auxiliary cushion aflixed to the upper side of said block, a metal cover extending over the top of said auxiliary cushion and having flange portions embracing the longitudinal edges of said auxiliary cushion and of the block and of portions of the stamp-cushion on the lower side of the block, said block having longitudinal grooves and said flange portions of the cover having inwardly extending beads engaged in said longitudinal grooves, and a handle afixed to the top portion of said cover.

3. In a hand stamp mount, a mount-block having longitudinal grooves in the sides thereof, a channel-shaped sheet-metal cover having flange portions adapted to flt over the grooved sides of the mount-block and provided with beads for entering said grooves slidably, one of the cover-flanges having a continuous flat external surface, and a coating on said surface adapted to receive a labelling impression from a stamp.

4. In a hand stamp mount, a mount-block having grooved longitudinal edges, a channelshaped sheet-metal cover adapted to extend over the top of said mount-block and having flange portions adapted to embrace and slidably engage the longitudinal edges of said mount-block to frictionally retain the same therein, said flange portions having parts for entering slidably the longitudinal grooves in the edges of the mountblock, a handle affixed solely to said cover, and a cushion afiixed to said mount-block and held under compression by said cover.

5. In a hand stamp mount, a mount-block, a cushion affixed thereto, a channel-shaped metal cover having flange portions adapted to embrace and slidably engage the longitudinal edges of the mount-block and cushion and to frictionally retain the same in place within the cover and hold the cushion under compression, and a handle afi'ixed to said cover.

JAMES COOKE. 

